Oxytocin, Trauma Disclosure and Intrusions
Effects of a Prolonged Oxytocin Treatment on Intrusions and Amygdala Reactivity in an Analogue Trauma Model
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Fase
Fase
- Fase 1
Contacten en locaties
Studie Locaties
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Bonn, Duitsland, 53105
- Department of Psychiatry, University of Bonn
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Healthy female volunteers
- Right-handed
Exclusion Criteria:
- Current or past psychiatric disease
- Current or past physical illness
- Psychoactive medication
- Hormonal contraception
- MRI contraindication (e.g. metal in body, claustrophobia)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Fundamentele wetenschap
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Verdrievoudigen
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / Behandeling |
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Actieve vergelijker: Oxytocin (6 days)
Intranasal administration, 24 international units (IU) oxytocin for three days after the first trauma movie exposure and three days after the second trauma movie exposure (24 IU per day)
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Intranasal administration, 24 international units (IU) oxytocin.
Andere namen:
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Actieve vergelijker: Oxytocin (3 days)
Intranasal administration, 24 international units (IU) oxytocin for three days after the first trauma movie exposure (24 IU per day) and placebo nasal spray for three days after the second trauma movie exposure
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Intranasal administration, 24 international units (IU) oxytocin.
Andere namen:
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Placebo-vergelijker: Placebo
Placebo nasal spray for six days
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De placebo-neussprays bevatten identieke ingrediënten behalve het peptide zelf.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Total number of intrusions following the first trauma movie exposure.
Tijdsspanne: Three days following the first trauma movie exposure.
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The participants will be asked to complete intrusion diaries at home in the evening of the days 1 to 3. Intrusions will be defined as involuntary recollections relating to film events that appear, apparently spontaneously, in consciousness.
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Three days following the first trauma movie exposure.
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Total number of intrusions following the second trauma movie exposure.
Tijdsspanne: Three days following the second trauma movie exposure.
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The participants will be asked to complete intrusion diaries at home in the evening of the days 4 to 6. Intrusions will be defined as involuntary recollections relating to film events that appear, apparently spontaneously, in consciousness.
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Three days following the second trauma movie exposure.
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Neural responses to emotional faces in the amygdala.
Tijdsspanne: Neural activations will be measured with fMRI in an emotional face matching task that lasts 20 min.
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Functional magnetic resonance imaging (fMRI) will be performed to measure blood-oxygen-level dependent signal in response to emotional face stimuli.
The investigators specifically plan to investigate amygdala responses to emotional faces, because pilot data indicate that neural responses to emotional faces in these regions are associated with the total number of intrusions.
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Neural activations will be measured with fMRI in an emotional face matching task that lasts 20 min.
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Neural responses to emotional faces in the prefrontal cortex.
Tijdsspanne: Neural activations will be measured with fMRI in an emotional face matching task that lasts 20 min.
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Functional magnetic resonance imaging (fMRI) will be performed to measure blood-oxygen-level dependent signal in response to emotional face stimuli.
The investigators specifically plan to investigate prefrontal cortex responses to emotional faces, because pilot data indicate that neural responses to emotional faces in these regions are associated with the total number of intrusions.
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Neural activations will be measured with fMRI in an emotional face matching task that lasts 20 min.
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fMRI resting state data
Tijdsspanne: Functional data will be acquired for 6 min.
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Participants will be instructed to lie still with open eyes during the resting state measurement and not think of anything in particular.
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Functional data will be acquired for 6 min.
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Trauma disclosure (time spend discussing the movie)
Tijdsspanne: Six days following the first trauma movie exposure.
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The intrusion diaries will contain a question for how long participants discussed the trauma movie.
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Six days following the first trauma movie exposure.
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Changes in pupil diameter in response to the trauma movie
Tijdsspanne: 2 min baseline before the trauma movie and during 15 min of the trauma movie.
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Changes in pupil diameter will be measured.
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2 min baseline before the trauma movie and during 15 min of the trauma movie.
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Changes in skin conductance level in response to the trauma movie
Tijdsspanne: 2 min baseline before the trauma movie and during 15 min of the trauma movie.
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Changes in skin conductance level will be measured.
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2 min baseline before the trauma movie and during 15 min of the trauma movie.
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Changes in respiration rate in response to the trauma movie
Tijdsspanne: 2 min baseline before the trauma movie and during 15 min of the trauma movie.
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Changes in respiration rate will be measured.
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2 min baseline before the trauma movie and during 15 min of the trauma movie.
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Salivary oxytocin concentrations
Tijdsspanne: Immediately before the trauma movie, immediately after the trauma movie and 40 min after the trauma movie.
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Saliva samples will be collected before and after the trauma movie to assess changes in oxytocin concentrations.
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Immediately before the trauma movie, immediately after the trauma movie and 40 min after the trauma movie.
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Salivary cortisol concentrations
Tijdsspanne: Immediately before the trauma movie, immediately after the trauma movie and 40 min after the trauma movie.
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Saliva samples will be collected before and after the trauma movie to assess changes in cortisol concentrations.
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Immediately before the trauma movie, immediately after the trauma movie and 40 min after the trauma movie.
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Questionnaire measurement of mood (PANAS)
Tijdsspanne: 10 min before and 10 min after the trauma movie.
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Positive and negative affect will be assessed via self-rating questionnaire 'The Positive and Negative Affect Schedule' using a categorical 5 point scale.
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10 min before and 10 min after the trauma movie.
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Medewerkers en onderzoekers
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Hoofdonderzoeker: René Hurlemann, MD, PhD, University of Bonn
Publicaties en nuttige links
Nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
Andere studie-ID-nummers
- PROXY
Plan Individuele Deelnemersgegevens (IPD)
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Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
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